Electronic Document Formats

The Call for Proposals and HST Primer are (only) available
electronically in HTML and PDF formats. The HTML version is optimized
for on-line browsing, and contains many links to related or more
detailed information, both within the document itself and within other
STScI documents. You are therefore encouraged to use the HTML version
electronically. Nonetheless, some people may prefer to read a
hardcopy, and with this in mind, the PDF version was optimized for
printing.

Printing the Documents

If you wish to print either document, we recommend that you use the
PDF version. PDF documents are provided in both US Letter Size format
and in European A4 Size format. Please choose the format appropriate
for your printer. Any links to information on the internet will appear
as underlined text in the hardcopy print. You can look up the internet
address of the corresponding link in Appendix E (Call for Proposals)
or Appendix D (HST Primer).

Browsing the HTML Document

You can consult the HTML versions of the documents using your
favorite internet browser. Depending on your browser, you may obtain a
nicer layout if you instruct your browser to use its default fonts,
instead of the document-specific fonts.

Netscape users who
want to override document specific fonts should take the following steps:

Users of other browsers should consult the documentation for their
browser, if necessary.

Release Documents

The Call for Proposals describes the policies and procedures for
submitting a HST Phase I proposal. Get the CP as:
PDF [US Letter Size],
PDF [A4 Size], or as
HTML.

The Primer provides an introductory overview of the Hubble Space
Telescope and explains how to calculate the appropriate number of orbits
for an observing proposal. Get the Primer as:
PDF [US Letter Size],
PDF [A4 Size], or as
HTML.

DD Time

Mid-Cycle Proposals

Up to 200 orbits per cycle will be available for Mid-Cycle GO programs. Mid-Cycle programs were initiated in Cycle 23 to provide the community with an opportunity to propose for in-cycle observations of recently-discovered, non-variable objects. As such, they complement Director’s Discretionary programs, which target unexpected transient phenomena and time-critical observations..